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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Fits 2016-2021 Bmw 230I/M240I High Performance Heat Exchanger-D780-0002The factory B4x B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent
The factory B4x/B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent damage. On an application where enjoyment is directly attributed to pushing the platform to its limits this constraint to cooling presents a challenge for the automotive enthusiast. The Dinan B4x/B58 heat exchanger for the F2x/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness requires unique "L" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15° IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment!
Features:
- Average of 8° reduction in IAT's with a maximum reduction of 15° over 15 successive WOT pulls
- Reduces the tendency to heat soak / go in to limp mode
- 48mm thick Dinan cooler vs. 27mm thick stock cooler
- 78% more cooling surface area and volume than stock
- 100% TIG welded and pressure tested
- Installation hardware included (inclusive of xDrive specific transmission oil cooler brackets)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 172 reviews
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Product Reviews
★★★★★ 4
Learn why we cry in this great kids book!
Format: Hardcover, Format: Hardcover
I received a digital copy of this book from the publisher. All thoughts and opinions are my own.
"Some days we cry because we call out for a hug but all we get back is an echo."
Why Do We Cry? begins with a boy asking his mother why we cry. There are many answers to such a question and the mother helps the boy explore the many reasons why we may shed tears.
As the mother explains the reasons why we cry, the illustrations become a bit surreal, to show the emotions and feelings associated with crying, from sadness to anger to grief. The mother compares and contrasts, all the while weaving a poetic story about her own life or memories and emotions.
This book reminds us that it is okay to cry, that crying can be a release, a way to heal, or let go. It helps us understand the difference between emotions and how they affect us.
There's an educational spread at the end of the book that teaches us the different types of tears, one of which--emotional tears-- is featured in this book, what they are made of, and even how much they weigh!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2020
★★★★★ 5
A Beautiful & Informative Exploration of Tears and Feelings
Format: Hardcover
A nonjudgemental and supportive exploration of the reasons we cry accompanied by imaginative and thoughtful art. Beautiful and informative, the final two pages include scientific information on tears to complement the emotional context of the main part of the story. Suitable for ages 3 to 7.
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Reviewed in the United States on August 25, 2020
★★★★★ 4
It's okay to cry
Format: Kindle
This picture book beautifully normalizes the reasons why children (and adults) may cry. It passes no judgment and does not belittle. Rather, some of the many reasons for tears are described; these include anger, sadness and happiness among others. Crying is seen as a normal response to being human. At the end of the book, there is additional information, some of it scientific, about tears. The book is sensitively illustrated with gorgeous pictures that enhance the text. This would be a great title to share with a child you know.
Many thanks to NetGalley and the publisher for this read in exchange for an honest review.
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Reviewed in the United States on April 8, 2020
★★★★★ 5
Great product
Style: Sustainable - Stretch Cloth, Size: 3 Count (Pack of 1)
I like the material, it seems to hold up that I haven’t had it very long. It dries completely between showers. It’s not over exfoliating.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Works great
Style: Sustainable - Stretch Cloth, Size: 3 Count (Pack of 1)
Love how it stretches so it’s easy to clean the back and my skin is very soft after!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
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